byte[] quad = textToNumericFormatV4(dottedQuad);
    if (quad == null) {
      return null;
    }
    String penultimate = Integer.toHexString(((quad[0] & 0xff) << 8) | (quad[1] & 0xff));
    String ultimate = Integer.toHexString(((quad[2] & 0xff) << 8) | (quad[3] & 0xff));
    return initialPart + penultimate + ":" + ultimate;
  }

  private static byte parseOctet(String ipString, int start, int end) {

      }
    }
  }

  @Benchmark
  int meanAndVariance(int reps) {
    int tmp = 0;
    for (int i = 0; i < reps; i++) {
      tmp += varianceAlgorithm.variance(values[i & 0xFF], meanAlgorithm).hashCode();
    }
    return tmp;
  }

    assertThat(converter.convert("0")).isEqualTo(0L);
    assertThat(converter.convert("-1")).isEqualTo(-1L);
    assertThat(converter.convert("0xff")).isEqualTo(255L);
    assertThat(converter.convert("0xFF")).isEqualTo(255L);
    assertThat(converter.convert("-0xFF")).isEqualTo(-255L);
    assertThat(converter.convert("#0000FF")).isEqualTo(255L);
    assertThat(converter.convert("0666")).isEqualTo(438L);
  }

    assertThat(converter.convert("0")).isEqualTo(0);
    assertThat(converter.convert("-1")).isEqualTo(-1);
    assertThat(converter.convert("0xff")).isEqualTo(255);
    assertThat(converter.convert("0xFF")).isEqualTo(255);
    assertThat(converter.convert("-0xFF")).isEqualTo(-255);
    assertThat(converter.convert("#0000FF")).isEqualTo(255);
    assertThat(converter.convert("0666")).isEqualTo(438);
  }

          if (expectDot) {
            byte0 = '.'.code
            expectDot = false
          } else {
            byte0 = labels[currentLabelIndex][currentLabelByteIndex] and 0xff
          }

          val byte1 = this[mid + publicSuffixByteIndex] and 0xff

          compareResult = byte0 - byte1
          if (compareResult != 0) break

          publicSuffixByteIndex++
          currentLabelByteIndex++

     */
    public static void appendHex(final StringBuilder buf, final int i) {
        buf.append(Integer.toHexString(i >> 24 & 0xff));
        buf.append(Integer.toHexString(i >> 16 & 0xff));
        buf.append(Integer.toHexString(i >> 8 & 0xff));
        buf.append(Integer.toHexString(i & 0xff));
    }

    /**
     * Converts an underscore-separated string to camel case.
     * <p>
     * Usage example:

        }
        final byte[] digest = msgDigest.digest();

        final StringBuilder buffer = new StringBuilder(200);
        for (final byte element : digest) {
            final String tmp = Integer.toHexString(element & 0xff);
            if (tmp.length() == 1) {
                buffer.append('0').append(tmp);
            } else {
                buffer.append(tmp);
            }
        }
        return buffer.toString();
    }

    byte[] quad = textToNumericFormatV4(dottedQuad);
    if (quad == null) {
      return null;
    }
    String penultimate = Integer.toHexString(((quad[0] & 0xff) << 8) | (quad[1] & 0xff));
    String ultimate = Integer.toHexString(((quad[2] & 0xff) << 8) | (quad[3] & 0xff));
    return initialPart + penultimate + ":" + ultimate;
  }

  private static byte parseOctet(String ipString, int start, int end) {

      }

      while (!encodedCharBuffer.exhausted()) {
        val b = encodedCharBuffer.readByte().toInt() and 0xff
        writeByte('%'.code)
        writeByte(HEX_DIGITS[b shr 4 and 0xf].code)
        writeByte(HEX_DIGITS[b and 0xf].code)
      }
    } else {
      // This character doesn't need encoding. Just copy it over.
      writeUtf8CodePoint(codePoint)
    }

    require(streamId and 0x80000000.toInt() == 0) { "reserved bit set: $streamId" }
    sink.writeMedium(length)
    sink.writeByte(type and 0xff)
    sink.writeByte(flags and 0xff)
    sink.writeInt(streamId and 0x7fffffff)
  }

  @Throws(IOException::class)
  override fun close() {
    withLock {
      closed = true
      sink.close()
    }
  }